WebView Metrics client implementation (Chromium part)

android_webview/java/src/org/chromium/android_webview/AwMetricsServiceClient.java

Index: android_webview/java/src/org/chromium/android_webview/AwMetricsServiceClient.java
diff --git a/android_webview/java/src/org/chromium/android_webview/AwMetricsServiceClient.java b/android_webview/java/src/org/chromium/android_webview/AwMetricsServiceClient.java
new file mode 100644
index 0000000000000000000000000000000000000000..7775fb290984238690d70bdb3c6c78e008a65d0e
--- /dev/null
+++ b/android_webview/java/src/org/chromium/android_webview/AwMetricsServiceClient.java
@@ -0,0 +1,29 @@
+// Copyright 2015 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+package org.chromium.android_webview;
+
+import android.content.Context;
+import android.webkit.ValueCallback;
+
+import org.chromium.base.annotations.JNINamespace;
+
+/**
+ * Java twin of the homonymous C++ class. The Java side is only responsible for
+ * switching metrics on and off. Since the setting is a platform feature, it
+ * must be obtained through PlatformServiceBridge.
+ */
+@JNINamespace("android_webview")
+public class AwMetricsServiceClient {
+    public AwMetricsServiceClient(Context applicationContext) {
+        PlatformServiceBridge.getInstance(applicationContext)
+                .setMetricsSettingListener(new ValueCallback<Boolean>() {
+                    public void onReceiveValue(Boolean enabled) {
+                        nativeSetMetricsEnabled(enabled);
+                    }
+                });
+    }
+
+    public static native void nativeSetMetricsEnabled(boolean enabled);
+}